<template>
    <h1>APP 组件</h1>
    <button @click="flag = !flag">展示/隐藏 子组件</button>
    <hr />
    
    
    <qf v-if="flag" />
</template>

<script setup>
import qf from './components/qf.vue'
import { ref } from 'vue'

const flag = ref(true)

</script>

<style>

</style>
